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KMID : 0359720130310030173
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Journal of the Korean Neurological Association
2013 Volume.31 No. 3 p.173 ~ p.177
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Decreased Retinal Thickness in Patients With Alzheimer’s Disease
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Kang Bong-Hui
Kim Jae-Il
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Abstract
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Background: The loss of ganglion cells observed in Alzheimer’s disease (AD) patients might be attributable to a neurodegenerative process involving the neuroretinal structure. The objective of this study was to determine the retinal thickness in patients with AD using optical coherence tomography (OCT). Methods: Neuro-ophthalmologic examinations were performed in eight AD patients and eight age-matched control subjects. The average thicknesses of the retinal nerve fiber layer (RN리) and the ganglion cell?inner plexiform layer (GCIPL) were measured using spectral-domain OCT in both subject groups, and the results were compared. Results: The RNFL was thinner in AD patients than in the age-matched controls (p<0.05), especially at the nasal and inferior retina, and the GCIPL was also significantly thinner (p<0.05). Conclusions: The decreased retinal thickness observed in AD patients suggests that OCT can be used as a biological marker of AD. The findings of this preliminary study suggest that the extent of the reduction in GCIPL and RNFL thicknesses should be investigated further. Key Words: Alzheimer’s disease, Spectral-domain optical coherence tomography, Retinal nerve fiber layer, Ganglion cell?inner plexiform layer
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KEYWORD
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Alzheimer’s disease, Spectral-domain optical coherence tomography, Retinal nerve fiber layer, Ganglion
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